There is a netizen a question:
A 4 digit, a bit D, ten-bit C, hundred b, thousand A, that is, Abcd, this 4 digits are multiplied by D, get DCBA, 4 numbers are different, ask this 4 digits number?
I don't know if it is because the previous mathematics is poor, I will guess a few are not right, I have no idea.
Later, I took my head just to say that I was too stupid, 4 digits were only 9000, and the conditions of the judgment were not complicated, why not let the program to deal with?
A loop, 3 sentences, less than 5 sentences, a few minutes (VC start spent a lot of time, hardware is going to upgrade :), get it!
Netizen: too sinister, not your brain count
I said: This is called work to have a good thing, and the strength of the computer is repeated operation, what is the brain?
Not? The technology is originally to change people's lives. What reasons do we have to change?
